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Duboscq colorimeter, Germany, 1901-1914

A colorimeter compares colours of samples with standard colours during chemical analysis to determine the concentration of a sample. Samples are viewed through a monocular microscope. The Duboscq colorimeter was used in urine analysis and later blood analysis to determine concentrations of its components in physiological laboratories and medical diagnosis.
Jules Duboscq (1817-86), a French optical instrument maker, invented this type of colorimeter in 1854. It was one of the earliest colorimeters and proved to be one of the most popular.

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Glossary

Glossary:

Glossary: physiology

The science of the functioning of living organisms and their component parts.

Glossary: monocular microscope

Microscope with a single viewing eyepiece, as distinct from binocular or stereomicroscopes. It should be noted that monocular microscopes can be fitted with a binocular eyepiece to give pseudo-stereo views

Glossary: colorimeter

Instrument for the analysis, synthesis, matching, and measurement of colour; it compares a given colour to a standard colour from a scale of colours, combinations of primary colours.